The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-07-2014, 09:51 AM   #1
83 Silverado
Registered User
 
83 Silverado's Avatar
 
Join Date: Dec 2009
Location: Windsor, Ontario
Posts: 78
In-take fuel pump ep241 vs ep381

I'm in the parts collecting stage gearing up for an 01 4.8l swap into my 83 silverado, and need some info for the in-take pump.

I have been searching for info on pumps for the swap, and the two that are recommended the most are the ac delco ep241 and ep381. From with I've read it looks like both are capable of the 58 psi needed, I'm mostly looking for some pro and cons on each. Thanks
83 Silverado is offline   Reply With Quote
Old 08-07-2014, 10:40 AM   #2
boostedc10
Registered User
 
boostedc10's Avatar
 
Join Date: Oct 2012
Location: Detroit
Posts: 748
Re: In-take fuel pump ep241 vs ep381

The ep241 will flow 40gph and is capable of around 60-70psi
The ep381 will flow 50gph and is capable of around 80-90 psi

Both are good budget replacements and will work with a LS.

The decision is what are your needs in regards to fueling.
boostedc10 is offline   Reply With Quote
Old 08-07-2014, 12:41 PM   #3
83 Silverado
Registered User
 
83 Silverado's Avatar
 
Join Date: Dec 2009
Location: Windsor, Ontario
Posts: 78
Re: In-take fuel pump ep241 vs ep381

Thank for the reply, it's just going to be a stock 4.8l with a return type fuel system.
83 Silverado is offline   Reply With Quote
Old 08-07-2014, 01:53 PM   #4
boostedc10
Registered User
 
boostedc10's Avatar
 
Join Date: Oct 2012
Location: Detroit
Posts: 748
Re: In-take fuel pump ep241 vs ep381

Pretty much the same price now adays, I would go with the ep381.
boostedc10 is offline   Reply With Quote
Old 08-09-2014, 07:44 PM   #5
68c10airstream
Registered User
 
68c10airstream's Avatar
 
Join Date: Mar 2013
Location: Marquette michigan
Posts: 828
Re: In-take fuel pump ep241 vs ep381

get the ep381 with the supplied short piece of hose, it's specific for intank useage. get specific efi hose clamps, don't use normal worm drive clamps, as they eventually will cut the hose and it will take some diagnosis why your fuel pressure is low (spraying inside your tank from improper clamps).
68c10airstream is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 01:29 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com